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Polluted by sewage 623 times in 2025 lasting 3,411 hours
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Donate NowHere are all the reported sewage overflow totals for Abersychan in 2025. Sometimes sewage can be being dumped for months at a time.
Reporting refers to how much of the time the monitoring was active. In this place all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Dwr Cymru Welsh Water | River Llwyd | CSO at PONTYPOOL CHARLESVILLE TRUNK SEWAR | 89 | 1,374 | 99.5 |
| Dwr Cymru Welsh Water | Cwm Ffrwd | VIADUCT ROAD CSO GARNIFFAITH ABERSY | 111 | 548 | 98.4 |
| Dwr Cymru Welsh Water | River Lwyd - Source To Conf Dowlais Bk | Old Road CSO, Abersychan | 82 | 421 | 98.5 |
| Dwr Cymru Welsh Water | River Lwyd | Pontnewynydd Mill Rd CSO | 77 | 381 | 99.1 |
| Dwr Cymru Welsh Water | River Lwyd | Pontypool Freeholdland Rd | 52 | 317 | 95.5 |
| Dwr Cymru Welsh Water | River Lwyd | Abersychan CSO Coed-Yr-Eos Farm | 58 | 137 | 99.9 |
| Dwr Cymru Welsh Water | River Lwyd | Snatchwood Rd CSO | 32 | 77 | 97.5 |
| Dwr Cymru Welsh Water | River Lwyd | RISING SUN BRIDGE CSO | 41 | 62 | 96.5 |
| Dwr Cymru Welsh Water | River Lwyd | HOSPITAL ROAD CSO ST JOHNS AMBULANCE | 40 | 47 | 99.9 |
| Dwr Cymru Welsh Water | River Lwyd | Rose Cottage CSO | 38 | 40 | 99.9 |
| Dwr Cymru Welsh Water | River Lwyd | Pontnewynydd Mill Rd O/S No 4 CSO | 2 | 5 | 99.9 |
| Dwr Cymru Welsh Water | River Lwyd | Hospital Rd CSO, Pontnewynydd | 1 | 0 | 99.8 |
| Dwr Cymru Welsh Water | River Lwyd | Leigh Rd CSO, Pontypool | 0 | 0 | 99.9 |
| Dwr Cymru Welsh Water | River Lwyd | Pleasant Court CSO, Limekiln Rd, Pontypool | 0 | 0 | 99.4 |
EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water
Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API
Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.
This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.
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Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org